Track wheel and tire size? - Toyota GR86, 86, FR-S and Subaru BRZ Forum & Owners Community

cab33 · 05-13-2016, 01:48 PM

What wheel and tire size seems to work best for the track?

I plan on running NT01's, just not sure how big to go with the horsepower that is available.

mav1178 · 05-13-2016, 01:49 PM

.... what's the available horsepower?

cab33 · 05-13-2016, 01:58 PM

Stock.

mav1178 · 05-13-2016, 02:00 PM

depending on your driving style, 225 up to 245 would be perfectly fine for track use.

245 will result in slightly slower times if there's a lot of higher speed straights on the course.

Wheel widths will be preference but should match the tires. 17x7.5" w/ 225/45-17s will be a killer combo, esp if there is big brake clearance.

17x8" w/ 235 or 17x9" w/ 235 or 245 tires would also work.

-alex

Icecreamtruk · 05-13-2016, 02:53 PM

If the nittos NT01 are sized like the Maxxis RC1 (both comparable R compounds) they will actually be bigger than street tire size. What I mean is, my 225 RC1 are actually as wide as my 245 PSS. If you get 245, make sure you realise that it wont probably fit on stock suspension (either touching the spring, or the fender depending on your wheel offset). 225 might be my sugestions. Im full exhaust + tune and running 225 RC1 I cannot power oversteer the car at all unless im really trying to drive bad.

cab33 · 05-13-2016, 07:53 PM

I'm running 245/40/17 Rival-s tires on 7" wide wheels for Autocross CS right now without issue. I have the TRD lowering springs and TRD sway bars also.

I have this urge to get 245's on wider wheels for the track but I just don't want it to be too much for the horsepower.

Mr.ac · 05-13-2016, 10:21 PM

Pretty much what mav1178 said.

Then again I seen Miatas spank everyone on 205/50/15. So......
Tires < driving skill.

rx3 · 05-14-2016, 07:50 AM

http://www.ft86club.com/forums/showthread.php?t=32423

philooo · 05-14-2016, 01:02 PM

I recommend 225. and if you start sliding around, think about your corner entry.
larger tire will mask many mistakes but you will be slower. Go fast on 225 to refine your skills, if you are just in for a few laughs in the turns, at high G's then go for the 245, it is fun to play with the grip.

zdr93523 · 05-18-2016, 03:02 AM

Quote:

Originally Posted by Mr.ac

Pretty much what mav1178 said.

Then again I seen Miatas spank everyone on 205/50/15. So......
Tires < driving skill.

And Compound >>>>>> Size

OkieSnuffBox · 05-18-2016, 10:50 AM

Not to mention weight, HP, suspension setup, etc. That's not even a remotely valid comparison.

GT86Dan · 05-18-2016, 12:20 PM

I run a 17 x 7.5 with a 225 rival/ rs3 v2. Never had an issue with grip.

Im also in the boat of compound > width.

Lynxis · 05-18-2016, 12:31 PM

NT01 is a great compound, I'd personally start with a 225/45ZR17 with the largest rim width they recommend for the tire which is an 8.5 but an 8.0 would be fine too. Nice thing about these rim sizes is that you can safely go to a 245/40ZR17 later if you like. The NT01 has a very stiff sidewall so running it stretched or pinched shouldn't impact response too much.

05-13-2016, 01:48 PM	#1
cab33 Member Join Date: May 2015 Drives: Fast Location: Central, FL Posts: 34 Thanks: 16 Thanked 4 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Track wheel and tire size? What wheel and tire size seems to work best for the track? I plan on running NT01's, just not sure how big to go with the horsepower that is available.

05-13-2016, 10:21 PM	#7
Mr.ac [insert cool phrase here] Join Date: Aug 2015 Drives: BRZ Premium Location: Central Coast CA Posts: 2,368 Thanks: 709 Thanked 1,559 Times in 930 Posts Mentioned: 30 Post(s) Tagged: 0 Thread(s)	Pretty much what mav1178 said. Then again I seen Miatas spank everyone on 205/50/15. So...... Tires < driving skill. __________________ New daily driver - Subaru BRZ Premium Weekend fun/track car - '91 MR2 Turbo Gen3 Old daily driver - '88 MR2 Supercharged

05-14-2016, 01:02 PM	#9
philooo Senior Member Join Date: Mar 2014 Drives: 13' Scion FRS Track car Location: miami Posts: 417 Thanks: 76 Thanked 107 Times in 84 Posts Mentioned: 7 Post(s) Tagged: 2 Thread(s)	I recommend 225. and if you start sliding around, think about your corner entry. larger tire will mask many mistakes but you will be slower. Go fast on 225 to refine your skills, if you are just in for a few laughs in the turns, at high G's then go for the 245, it is fun to play with the grip. __________________ 2013 Scion Frs Track Car - Sold.

05-18-2016, 12:20 PM	#12
GT86Dan Senior Member Join Date: Sep 2013 Drives: 2013 scion frs Location: Union , NJ Posts: 139 Thanks: 41 Thanked 49 Times in 26 Posts Mentioned: 3 Post(s) Tagged: 0 Thread(s)	I run a 17 x 7.5 with a 225 rival/ rs3 v2. Never had an issue with grip. Im also in the boat of compound > width. __________________ Speed has never killed anyone, suddenly becoming stationary… that’s what gets you. – Jeremy Clarkson

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05-13-2016, 01:49 PM	#2
mav1178 Senior Member Join Date: Apr 2013 Drives: 2005 Toyota Camry Location: 91745 Posts: 6,562 Thanks: 493 Thanked 6,097 Times in 3,029 Posts Mentioned: 95 Post(s) Tagged: 3 Thread(s)	.... what's the available horsepower?

05-13-2016, 01:58 PM	#3
cab33 Member Join Date: May 2015 Drives: Fast Location: Central, FL Posts: 34 Thanks: 16 Thanked 4 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	Stock.

05-13-2016, 02:00 PM	#4
mav1178 Senior Member Join Date: Apr 2013 Drives: 2005 Toyota Camry Location: 91745 Posts: 6,562 Thanks: 493 Thanked 6,097 Times in 3,029 Posts Mentioned: 95 Post(s) Tagged: 3 Thread(s)	depending on your driving style, 225 up to 245 would be perfectly fine for track use. 245 will result in slightly slower times if there's a lot of higher speed straights on the course. Wheel widths will be preference but should match the tires. 17x7.5" w/ 225/45-17s will be a killer combo, esp if there is big brake clearance. 17x8" w/ 235 or 17x9" w/ 235 or 245 tires would also work. -alex

05-13-2016, 02:53 PM	#5
Icecreamtruk Senior Member Join Date: Dec 2015 Drives: Track preped NA FRS Location: Montreal, Canada Posts: 987 Thanks: 1,056 Thanked 681 Times in 405 Posts Mentioned: 12 Post(s) Tagged: 0 Thread(s)	If the nittos NT01 are sized like the Maxxis RC1 (both comparable R compounds) they will actually be bigger than street tire size. What I mean is, my 225 RC1 are actually as wide as my 245 PSS. If you get 245, make sure you realise that it wont probably fit on stock suspension (either touching the spring, or the fender depending on your wheel offset). 225 might be my sugestions. Im full exhaust + tune and running 225 RC1 I cannot power oversteer the car at all unless im really trying to drive bad.

05-13-2016, 07:53 PM	#6
cab33 Member Join Date: May 2015 Drives: Fast Location: Central, FL Posts: 34 Thanks: 16 Thanked 4 Times in 3 Posts Mentioned: 0 Post(s) Tagged: 0 Thread(s)	I'm running 245/40/17 Rival-s tires on 7" wide wheels for Autocross CS right now without issue. I have the TRD lowering springs and TRD sway bars also. I have this urge to get 245's on wider wheels for the track but I just don't want it to be too much for the horsepower.

05-14-2016, 07:50 AM	#8
rx3 Senior Member Join Date: Mar 2013 Drives: BRZ Location: Europe Posts: 350 Thanks: 53 Thanked 114 Times in 71 Posts Mentioned: 1 Post(s) Tagged: 0 Thread(s)	http://www.ft86club.com/forums/showthread.php?t=32423

05-18-2016, 10:50 AM	#11
OkieSnuffBox Senior Member Join Date: Aug 2014 Drives: '23 BRZ Limited Location: OKC, OK Posts: 2,084 Thanks: 680 Thanked 1,330 Times in 758 Posts Mentioned: 9 Post(s) Tagged: 1 Thread(s)	Not to mention weight, HP, suspension setup, etc. That's not even a remotely valid comparison.

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